Add a GTK+ GUI

1 files changed, 379 insertions, 0 deletions

diff --git a/sensei-raw-ctl-gui.c b/sensei-raw-ctl-gui.c
new file mode 100644
index 0000000..46272de
--- /dev/null
+++ b/sensei-raw-ctl-gui.c
@@ -0,0 +1,379 @@
+/*
+ * sensei-raw-ctl-gui.c: SteelSeries Sensei Raw control utility - GTK+ GUI
+ *
+ * Very tightly coupled with the sensei-raw-ctl utility.
+ *
+ * Copyright (c) 2013, Přemysl Janouch <p.janouch@gmail.com>
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#include <stdlib.h>
+#include <gtk/gtk.h>
+#include <glib/gi18n.h>
+
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include "config.h"
+
+/** User interface string for GtkBuilder. */
+extern const char ui[];
+
+/* To translate combo box entries into sensei-raw-ctl arguments. */
+static gchar *pulsation_list[] = { "steady", "slow", "medium", "fast", NULL };
+static gchar *intensity_list[] = { "off", "low", "medium", "high", NULL };
+
+/* GtkNotebook pages within the UI. */
+enum
+{
+	PAGE_PROBING,
+	PAGE_NO_DEVICE,
+	PAGE_SETTINGS,
+	PAGE_COUNT
+};
+
+/* sensei-raw-ctl output values. */
+enum
+{
+	OUT_INTENSITY,
+	OUT_PULSATION,
+	OUT_CPI_LED_OFF,
+	OUT_CPI_LED_ON,
+	OUT_POLLING,
+	OUT_COUNT
+};
+
+// ----- User interface -------------------------------------------------------
+
+static void
+fatal (GtkWidget *parent, const gchar *message)
+{
+	GtkWidget *dialog = gtk_message_dialog_new (GTK_WINDOW (parent),
+		GTK_DIALOG_DESTROY_WITH_PARENT,
+		GTK_MESSAGE_ERROR, GTK_BUTTONS_CLOSE, _("Fatal error"));
+	gtk_message_dialog_format_secondary_text
+		(GTK_MESSAGE_DIALOG (dialog), "%s", message);
+	gtk_dialog_run (GTK_DIALOG (dialog));
+	gtk_widget_destroy (dialog);
+	gtk_main_quit ();
+}
+
+static void
+set_page (GtkBuilder *builder, gint page)
+{
+	GtkNotebook *notebook = GTK_NOTEBOOK
+		(gtk_builder_get_object (builder, "notebook"));
+	gtk_notebook_set_current_page (notebook, page);
+}
+
+static gboolean
+spawn_ctl (gchar **argv, gchar **out, GtkBuilder *builder)
+{
+	GError *error = NULL;
+	gint status;
+	gchar *err;
+
+	GtkWidget *win = GTK_WIDGET (gtk_builder_get_object (builder, "win"));
+	if (!g_spawn_sync (NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL,
+		out, &err, &status, &error))
+	{
+		fatal (win, error->message);
+		g_error_free (error);
+		return FALSE;
+	}
+
+	if (WIFEXITED (status) && WEXITSTATUS (status) == 0)
+		return TRUE;
+
+	if (strstr (err, "no suitable device"))
+		set_page (builder, PAGE_NO_DEVICE);
+	else
+		fatal (win, err);
+
+	g_clear_pointer (out, g_free);
+	g_free (err);
+	return FALSE;
+}
+
+static gboolean
+set_combo (GtkComboBox *combo, gchar *list[], const gchar *word)
+{
+	gint i;
+	for (i = 0; list[i]; i++)
+		if (!strcmp (word, list[i]))
+		{
+			gtk_combo_box_set_active (combo, i);
+			return TRUE;
+		}
+	return FALSE;
+}
+
+static gboolean
+set_scale (GtkRange *scale, const gchar *word, const gchar *follows)
+{
+	gchar *end;
+	gint64 value = g_ascii_strtoll (word, &end, 10);
+	if (strcmp (end, follows))
+		return FALSE;
+
+	gtk_range_set_value (scale, value);
+	return TRUE;
+}
+
+static void
+load_configuration (GtkBuilder *builder)
+{
+	gchar *argv[] = { "pkexec",
+		PROJECT_INSTALL_BINDIR "/" PROJECT_NAME, "--show", NULL };
+
+	gchar *out;
+	if (!spawn_ctl (argv, &out, builder))
+		return;
+
+	GRegex *regex = g_regex_new ("(?<=: ).*$", G_REGEX_MULTILINE, 0, NULL);
+	GMatchInfo *info;
+	g_regex_match (regex, out, 0, &info);
+
+	gint line = 0;
+	gchar *word = NULL;
+
+	while (g_match_info_matches (info))
+	{
+		g_free (word);
+		word = g_match_info_fetch (info, 0);
+		switch (line++)
+		{
+		case OUT_INTENSITY:
+			if (!set_combo (GTK_COMBO_BOX (gtk_builder_get_object
+				(builder, "intensity_combo")), intensity_list, word))
+				goto out;
+			break;
+		case OUT_PULSATION:
+			if (!set_combo (GTK_COMBO_BOX (gtk_builder_get_object
+				(builder, "pulsation_combo")), pulsation_list, word))
+				goto out;
+			break;
+		case OUT_CPI_LED_OFF:
+			if (!set_scale (GTK_RANGE (gtk_builder_get_object
+				(builder, "cpi_off_scale")), word, ""))
+				goto out;
+			break;
+		case OUT_CPI_LED_ON:
+			if (!set_scale (GTK_RANGE (gtk_builder_get_object
+				(builder, "cpi_on_scale")), word, ""))
+				goto out;
+			break;
+		case OUT_POLLING:
+			if (!set_scale (GTK_RANGE (gtk_builder_get_object
+				(builder, "polling_scale")), word, "Hz"))
+				goto out;
+		}
+		g_match_info_next (info, NULL);
+	}
+
+	set_page (builder, PAGE_SETTINGS);
+
+out:
+	g_free (word);
+	g_match_info_free (info);
+	g_regex_unref (regex);
+	g_free (out);
+
+	if (line != OUT_COUNT)
+		fatal (GTK_WIDGET (gtk_builder_get_object (builder, "win")),
+			_("Internal error"));
+}
+
+static void
+retry_load (GtkBuilder *builder)
+{
+	set_page (builder, PAGE_PROBING);
+	load_configuration (builder);
+}
+
+static void
+save_configuration (GtkBuilder *builder)
+{
+	gchar *polling = g_strdup_printf ("%.0f", gtk_range_get_value
+		(GTK_RANGE (gtk_builder_get_object (builder, "polling_scale"))));
+	gchar *cpi_on  = g_strdup_printf ("%.0f", gtk_range_get_value
+		(GTK_RANGE (gtk_builder_get_object (builder, "cpi_on_scale"))));
+	gchar *cpi_off = g_strdup_printf ("%.0f", gtk_range_get_value
+		(GTK_RANGE (gtk_builder_get_object (builder, "cpi_off_scale"))));
+
+	GtkComboBox *combo;
+	gint active;
+
+	combo = GTK_COMBO_BOX (gtk_builder_get_object (builder, "pulsation_combo"));
+	active = gtk_combo_box_get_active (combo);
+	g_assert (active >= 0 && active < G_N_ELEMENTS (pulsation_list) - 1);
+	gchar *pulsation = pulsation_list[active];
+
+	combo = GTK_COMBO_BOX (gtk_builder_get_object (builder, "intensity_combo"));
+	active = gtk_combo_box_get_active (combo);
+	g_assert (active >= 0 && active < G_N_ELEMENTS (intensity_list) - 1);
+	gchar *intensity = intensity_list[active];
+
+	gchar *argv[] = { "pkexec", PROJECT_INSTALL_BINDIR "/" PROJECT_NAME,
+		"--polling", polling, "--cpi-on", cpi_on, "--cpi-off", cpi_off,
+		"--pulsation", pulsation, "--intensity", intensity, "--save", NULL };
+
+	gchar *out;
+	if (spawn_ctl (argv, &out, builder))
+		g_free (out);
+
+	g_free (polling);
+	g_free (cpi_on);
+	g_free (cpi_off);
+}
+
+static void
+on_set_mode_normal (GtkBuilder *builder)
+{
+	gchar *out, *argv[] = { "pkexec",
+		PROJECT_INSTALL_BINDIR "/" PROJECT_NAME, "--mode", "normal", NULL };
+	if (spawn_ctl (argv, &out, builder))
+		g_free (out);
+}
+
+static void
+on_set_mode_legacy (GtkBuilder *builder)
+{
+	gchar *out, *argv[] = { "pkexec",
+		PROJECT_INSTALL_BINDIR "/" PROJECT_NAME, "--mode", "compat", NULL };
+	if (spawn_ctl (argv, &out, builder))
+		g_free (out);
+}
+
+// ----- User interface -------------------------------------------------------
+
+static gboolean
+on_change_value (GtkRange *range, GtkScrollType scroll, gdouble value,
+	gpointer user_data)
+{
+	GtkAdjustment *adjustment = gtk_range_get_adjustment (range);
+	static const gint steps[] = { 125, 250, 500, 1000 };
+
+	switch (scroll)
+	{
+		gint i;
+	case GTK_SCROLL_NONE:
+	case GTK_SCROLL_JUMP:
+		for (i = 0; i < G_N_ELEMENTS (steps); i++)
+			if (i == G_N_ELEMENTS (steps) - 1 ||
+				value < (steps[i] + steps[i + 1]) / 2)
+			{
+				value = steps[i];
+				break;
+			}
+		break;
+	case GTK_SCROLL_STEP_BACKWARD:
+	case GTK_SCROLL_PAGE_BACKWARD:
+		value = gtk_adjustment_get_value (adjustment);
+		for (i = 0; i < G_N_ELEMENTS (steps) - 1; i++)
+			if (steps[i + 1] >= value)
+			{
+				value = steps[i];
+				break;
+			}
+		break;
+	case GTK_SCROLL_STEP_FORWARD:
+	case GTK_SCROLL_PAGE_FORWARD:
+		value = gtk_adjustment_get_value (adjustment);
+		for (i = 0; i < G_N_ELEMENTS (steps); i++)
+			if (steps[i] > value)
+			{
+				value = steps[i];
+				break;
+			}
+		break;
+	case GTK_SCROLL_START:
+		value = steps[0];
+		break;
+	case GTK_SCROLL_END:
+		value = steps[G_N_ELEMENTS (steps) - 1];
+		break;
+	default:
+		g_assert_not_reached ();
+	}
+
+	gtk_adjustment_set_value (adjustment, value);
+	return TRUE;
+}
+
+static gboolean
+on_change_value_steps (GtkRange *range, GtkScrollType scroll, gdouble value,
+	gpointer user_data)
+{
+	GtkAdjustment *adjustment = gtk_range_get_adjustment (range);
+	gdouble lower = gtk_adjustment_get_lower (adjustment);
+	gdouble step  = gtk_adjustment_get_step_increment (adjustment);
+	value = lower + (int) ((value - lower) / step + 0.5) * step;
+	gtk_adjustment_set_value (adjustment, value);
+	return TRUE;
+}
+
+static gchar *
+on_format_value (GtkScale *scale, gdouble value)
+{
+	return g_strdup_printf (_("%gHz"), value);
+}
+
+int
+main (int argc, char *argv[])
+{
+	gtk_init (&argc, &argv);
+	gtk_window_set_default_icon_name (PROJECT_NAME "-gui");
+
+	GError *error = NULL;
+	GtkBuilder *builder = gtk_builder_new ();
+	if (!gtk_builder_add_from_string (builder, ui, -1, &error))
+	{
+		g_printerr ("%s: %s\n", _("Error"), error->message);
+		exit (EXIT_FAILURE);
+	}
+
+	GtkWidget *win = GTK_WIDGET (gtk_builder_get_object (builder, "win"));
+	g_signal_connect (win, "destroy", G_CALLBACK (gtk_main_quit), NULL);
+	g_signal_connect_swapped (win, "map-event",
+		G_CALLBACK (load_configuration), builder);
+	gtk_widget_show_all (win);
+
+	g_signal_connect (gtk_builder_get_object (builder, "polling_scale"),
+		"change-value", G_CALLBACK (on_change_value), NULL);
+	g_signal_connect (gtk_builder_get_object (builder, "polling_scale"),
+		"format-value", G_CALLBACK (on_format_value), NULL);
+
+	g_signal_connect (gtk_builder_get_object (builder, "cpi_off_scale"),
+		"change-value", G_CALLBACK (on_change_value_steps), NULL);
+	g_signal_connect (gtk_builder_get_object (builder, "cpi_on_scale"),
+		"change-value", G_CALLBACK (on_change_value_steps), NULL);
+
+	g_signal_connect_swapped (gtk_builder_get_object (builder, "retry_button"),
+		"clicked", G_CALLBACK (retry_load), builder);
+
+	g_signal_connect_swapped (gtk_builder_get_object (builder, "normal_button"),
+		"clicked", G_CALLBACK (on_set_mode_normal), builder);
+	g_signal_connect_swapped (gtk_builder_get_object (builder, "legacy_button"),
+		"clicked", G_CALLBACK (on_set_mode_legacy), builder);
+	g_signal_connect_swapped (gtk_builder_get_object (builder, "apply_button"),
+		"clicked", G_CALLBACK (save_configuration), builder);
+
+	gtk_main ();
+	g_object_unref (builder);
+	return 0;
+}
+